CN103438785B - Diesel-engine body semicircle thrust surface radius appliance special for detecting - Google Patents

Diesel-engine body semicircle thrust surface radius appliance special for detecting Download PDF

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Publication number
CN103438785B
CN103438785B CN201310302896.4A CN201310302896A CN103438785B CN 103438785 B CN103438785 B CN 103438785B CN 201310302896 A CN201310302896 A CN 201310302896A CN 103438785 B CN103438785 B CN 103438785B
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China
Prior art keywords
cubing
engine
diesel
hole
meter base
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CN201310302896.4A
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CN103438785A (en
Inventor
姜雪梅
李桂艳
李显达
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Dongfeng Chaoyang Diesel Co Ltd
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Dongfeng Chaoyang Diesel Co Ltd
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Abstract

The invention discloses a kind of diesel-engine body semicircle thrust surface radius appliance special for detecting, its technical scheme is: cubing body is T font, and its lower bottom is an extrados, and Compress Spring edge crouches in the epimere of cubing body stairstepping through hole. Above cubing body, be provided with meter base, dial gauge is inserted in meter base cubing body and Compress Spring. In cubing body, be provided with measurement column, its top contacts with the top of dial gauge measuring stick, and expose to the extrados of bottom under cubing body at the hypomere top of measurement column. The back side of cubing body is provided with a pair of limited block, and limited block is square bent plate. Cubing body is furnished with the calibration pedestal of spill, the cubing Ontology Matching of this pedestal and T font. The invention solves the difficult problem that universal check tool cannot directly detect diesel-engine body semicircle thrust surface, and under cubing body measurement column used, top is a semicircular arc gauge head, can make gauge head carry out good contacting with narrow thrust surface, make the data of test accurately reliable.

Description

Diesel-engine body semicircle thrust surface radius appliance special for detecting
Technical field
The invention belongs to internal combustion engine assembling cubing, be specifically related to a kind of specific purpose tool that thrust surface of diesel body radius is detected.
Background technology
Diesel-engine body is one of five large parts of engine, between the scale error of the thrust surface of body is determining that engine crankshaft axiallyThe error of gap. If the form of engine thrust surface is completely circular structure, the detection of its diameter is just relatively easy, at inter processMeasure just passable. But there are some diesel-engine bodies, in order to strengthen the intensity of body, and the form of employing semicircle thrust surface.The feature of this thrust surface is that step width is narrow, especially for the smaller body of volume. Subject matter is general cubingCannot directly enter in crankshaft cavity, after must waiting until bolt of main bearing cap being tightened, and crankshaft hole machines and just can carry out standardReally measure. Up to the present, still do not have a kind of special measuring tool to carry out this and detect, this is for engine assembly,Really become diesel-engine body semicircle thrust surface radius and detect a difficult problem of controlling.
Summary of the invention
For above-mentioned detection technique problem, the object of this invention is to provide one can be to diesel-engine body small size body semicircle onlyThe appliance special for detecting that pushing surface radius detects.
Below technical scheme of the present invention is explained. Diesel-engine body semicircle thrust surface radius appliance special for detecting has: cubing originallyBody, Compress Spring, meter base, dial gauge, limited block, countersink head screw, set screw and lock-screw etc. Its technical sideCase is: cubing body is T font, and under cubing body, bottom is an extrados, has rank in cubing body vertical directionTrapezoidal hole, Compress Spring edge crouches in the epimere of this stairstepping through hole. Above cubing body, be provided with meter base, the center of meter baseAlso have a stairstepping through hole. Dial gauge is inserted in meter base, and the guide post of dial gauge is positioned at meter base stairstepping through holeEpimere, the measuring stick of dial gauge passes meter base, inserts in the Compress Spring of cubing body. In cubing body stairstepping through hole, establishHave measurement column, the epimere of gauge head is inserted Compress Spring, and contacts with the top of dial gauge measuring stick, the hypomere top of measurement columnExpose to the extrados of bottom under cubing body. At the back side of cubing body, taking stairstepping through hole as center line, bilateral symmetry is respectively provided withA limited block, for preventing that cubing twisting impact from detecting. Limited block is square bent plate, and the one side at right angle is passed through countersink head screwFix with cubing body, another side is provided with screwed hole, fixes by set screw and engine semicircle thrust surface. Cubing body is joinedHave calibration pedestal, calibration pedestal is spill, with the cubing Ontology Matching of T font.
Before detection, first with calibration pedestal, the dial gauge in cubing is made zero. Then cubing is placed on to diesel-engine bodyOn main beating cap faying face, adjust the screw on limited block, the end face of two screws is locked on corresponding thrust surface, anti-Only cubing in the time detecting because front and back beat causes detection error. When detection, by the gauge head of measurement column and thrust surface plane contact, surveyCrown end, under the pressure of semicircle thrust surface, moves on compressing dial gauge gauge head (measurement column), and the distance size of above moving is from gauge outfitShow. Can detect in time semicircle thrust surface radius man-hour adding thus, and can provide concrete numerical value.
Feature of the present invention and beneficial effect are: having solved universal check tool cannot directly enter in crankshaft cavity, to diesel-engine body halfThe difficult problem that circle thrust surface detects, can conveniently complete the operation of thrust surface radius error is detected. And cubing body is usedUnder measurement column, top is a semicircular arc gauge head, can make gauge head carry out good contacting with narrow thrust surface (step surface),Make the data of test accurately reliable.
Brief description of the drawings
Fig. 1 is the three-dimensional sketch of structure of the present invention.
Fig. 2 is structure of the present invention and principle side diagrammatic cross-sectional view.
Fig. 3 is that embodiment detects schematic diagram on diesel-engine body.
Fig. 4 is the enlarged drawing of cubing measurement column.
Detailed description of the invention
Below in conjunction with accompanying drawing and by embodiment, structure of the present invention and principle are further described. Diesel-engine body semicircle onlyPushing surface radius appliance special for detecting, its structure is: cubing body 1 is T font, and under cubing body, bottom is an extrados, in inspectionTool body vertical direction has a stairstepping through hole, and Compress Spring 2 edges crouch in the epimere of this stairstepping through hole. On cubing bodyFace is provided with meter base 3, and the center of meter base also has a stairstepping through hole 4, and dial gauge 5 is inserted in meter base, dial gaugeGuide post be positioned at the epimere of meter base stairstepping through hole, the measuring stick of dial gauge passes meter base, inserts the compression of cubing bodyIn spring (as Fig. 1). In cubing body stairstepping through hole, be provided with measurement column 6, the epimere of gauge head is inserted Compress Spring, and with hundredThe top of submeter measuring stick contacts, and expose to the extrados (as shown in Figure 1, Figure 2) of bottom under cubing body at the hypomere top of measurement column.At the back side of cubing body, taking stairstepping through hole as center line, bilateral symmetry is respectively provided with a limited block 7, for preventing cubing twistingImpact detects. Limited block is square bent plate, and the one side at right angle is fixed by countersink head screw 8 and cubing body, and another side is provided withScrewed hole, fixes by set screw 9 and engine semicircle thrust surface. Cubing body is furnished with calibration pedestal 10, and calibration pedestal isSpill, with the cubing Ontology Matching of T font. The side of cubing body is provided with lock-screw 11, for fixation measuring post; InstrumentThe side of seat is also provided with lock-screw 11, for the guide post of fixing dial gauge. The lower top of measurement column is small semicircle arc, withUnder cubing body, the cambered surface of bottom is mated (as Fig. 3).
White submeter is one of main measurer of machining industry, and its structure is to have two sections of metallic rod below gauge outfit, and upper semisection is as fixedPosition bar is mainly used to fixing gauge outfit; Lower semisection is as measuring stick. Measuring stick is enclosed within backstay and is spring structure, measuring stickMove up and down, meter pointer can accurately show the size height of displacement. Dial gauge is inserted in meter base and cubing body, with lockTight screw withstands backstay fixes it. At the stairstepping through hole of cubing body, interior edge is sleeping Compress Spring, and measuring stick explores downward toCompress Spring endoporus. Key is in the through hole of Compress Spring, to be provided with a measurement column (as Fig. 4), is positioned at dial gauge gauge head and quiltBetween measurement face, be equivalent to extend the measuring stick of dial gauge. Because cubing body is furnished with the calibration pedestal of spill, this pedestal withThe cubing Ontology Matching of T font. The effect of calibration pedestal is to determine a datum mark (zero point), measurement column and calibration for dial gaugeOn pedestal, dial gauge pointer is placed in to " zero-bit " when plane contact, now also withstands measurement column with lock-screw it is fixed. In inspectionThe back side of tool body is provided with a pair of limited block, and its Main Function is in the time that diesel-engine body semicircle thrust surface is measured, and preventsCubing body rotates displacement. When detection, the step surface of cubing body is placed on the port surface of body semicircle thrust surface, unscrewsGauge head trip bolt, gauge head can slide up and down, and causes dial gauge first finger pin (value) to change. Two limits on limited blockPosition screw 9 end faces are fitted on engine semicircle thrust surface another side, prevent that cubing body twisting impact detects number in the time detectingValue. Fix rear left and right mobile cubing gently, now the maximum on dial gauge is radius and the mark of engine semicircle thrust surfaceThe difference of accurate value.
Diesel-engine body semicircle thrust surface adds man-hour, must, before dress main beating cap operation, after processing watt mouth, carry out. Diesel engine frameSemicircle thrust surface status requirement is very tight, and the requirement of radius is also very strict, and the body after processing cannot be repaired, if can not be realNow this operation detects, and the initial workpiece after processing is easy to occur waste product. Carry out in-process checking by semicircle thrust surface cubing, can be at any timeDetect numerical value, realize and add and cut by adjustment method man-hour at initial workpiece, avoid, owing to cannot inter process being controlled, causing headPart body is scrapped and postorder detects between the order causing and treats work.

Claims (3)

1. diesel-engine body semicircle thrust surface radius appliance special for detecting, have cubing body, Compress Spring, meter base, dial gauge,Limited block, countersink head screw, set screw and lock-screw, is characterized in that: cubing body (1) is T font, cubing bodyLower bottom is an extrados, has a stairstepping through hole in cubing body vertical direction, and Compress Spring (2) edge crouches in these rankThe epimere of trapezoidal hole, is provided with meter base (3) above cubing body, the center of meter base also has a stairstepping through hole (4),Dial gauge (5) is inserted in meter base, and the guide post of dial gauge is positioned at the epimere of meter base stairstepping through hole, the measurement of dial gaugeBar passes meter base, inserts in the Compress Spring of cubing body, in cubing body stairstepping through hole, is provided with measurement column (6), measuresThe epimere of post is inserted Compress Spring, and contacts with the top of dial gauge measuring stick, and expose to cubing basis at the hypomere top of measurement columnThe extrados of bottom under body, at the back side of cubing body, taking stairstepping through hole as center line, bilateral symmetry is respectively provided with a limited block (7),Be used for preventing that cubing twisting impact from detecting, limited block is square bent plate, the one side at right angle by countersink head screw (8) and cubing thisBody is fixed, and another side is provided with screwed hole, fixes by set screw (9) and diesel-engine body semicircle thrust surface, and cubing body is joinedHave calibration pedestal (10), calibration pedestal is spill, with the cubing Ontology Matching of T font.
2. according to diesel-engine body semicircle thrust surface radius appliance special for detecting claimed in claim 1, it is characterized in that described cubing body(1) side is provided with lock-screw (11), for fixation measuring post (6); The side of described meter base (3) is also provided with lockingScrew (11), for the guide post of fixing described dial gauge (5).
3. according to the diesel-engine body semicircle thrust surface radius appliance special for detecting described in claim 1 or 2, it is characterized in that described measurementThe lower top of post (6) is small semicircle arc, mates with the cambered surface of the lower bottom of described cubing body (1).
CN201310302896.4A 2013-07-16 2013-07-16 Diesel-engine body semicircle thrust surface radius appliance special for detecting Active CN103438785B (en)

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CN103438785B true CN103438785B (en) 2016-05-04

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105300223A (en) * 2015-12-04 2016-02-03 广西玉柴机器股份有限公司 On-line measurement tool for processing volume of thrust surface of camshaft
CN106323138A (en) * 2016-10-19 2017-01-11 中航飞机股份有限公司西安飞机分公司 Measuring method for groove in side wall of internal rotating part
CN106643409A (en) * 2016-11-30 2017-05-10 广西玉柴机器股份有限公司 Crankshaft thrust stopper width measuring gauge

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101650149A (en) * 2008-08-12 2010-02-17 广西玉柴机器股份有限公司 Arc diameter detector and manufacturing and using methods thereof
CN102338608A (en) * 2011-08-25 2012-02-01 桂林福达曲轴有限公司 Checking fixture for measuring axial dimension of crankshaft pin hole and detection method
CN202216637U (en) * 2011-08-31 2012-05-09 慈溪市汇丽机电有限公司 Arc section radium fast-measuring tool
CN202304712U (en) * 2011-09-16 2012-07-04 宁波圣菲机械制造有限公司 Tool for measuring inner hole depth

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005300508A (en) * 2004-04-14 2005-10-27 Marui Keiki Kk Outer diameter measuring instrument

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101650149A (en) * 2008-08-12 2010-02-17 广西玉柴机器股份有限公司 Arc diameter detector and manufacturing and using methods thereof
CN102338608A (en) * 2011-08-25 2012-02-01 桂林福达曲轴有限公司 Checking fixture for measuring axial dimension of crankshaft pin hole and detection method
CN202216637U (en) * 2011-08-31 2012-05-09 慈溪市汇丽机电有限公司 Arc section radium fast-measuring tool
CN202304712U (en) * 2011-09-16 2012-07-04 宁波圣菲机械制造有限公司 Tool for measuring inner hole depth

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Denomination of invention: Gauge for radius of semicircular thrust surface of engine body of diesel engine

Effective date of registration: 20190612

Granted publication date: 20160504

Pledgee: Lingyuan steel enterprise limited liability company

Pledgor: Dongfeng Chaoyang Chaochai Power Co., Ltd.

Registration number: 2019210000021

PE01 Entry into force of the registration of the contract for pledge of patent right